Steam-boiler furnace



(No Model.)

E. O. HOLMES.

STEAM BOILER FURNACE. No. 428,609. Patented May 27, 1890.

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UNITED STATES PATENT OFFICE.

EDlVARD O. HOLMES, OF MALDEN, MASSACHUSETTS.

STEAM-BOILER FURNACE.

SPECIFICATION forming part of Letters Patent No. 428,609, dated May 27, 1890.

Application filed October 28, 1889. Serial No. 328,460. (No model.)

To all whom it may concern.- 7

Be it known that I, EDWARD O. HoLMEs, of Malden, in the countyof Middle'sex and State of Massachusetts, have invented a new and useful Improvement in Steam Boiler Furnaces, of which the following is a specification.

The object of this invention is to so construct/the furnace as to facilitate the cleaning out of the vertical fines, and I accomplish this object by supporting the boiler pivot-ally, thereby enabling it to be swung down into a horizontal position, thus rendering the fines easily accessible.

The nature of the invention in detail is fully described below, and illustrated in the accompanying drawings, in which Figure 1 is a vertical section of a steamboiler, furnace embodying my invention, the broken lines showing the position of the boiler when swung down into a horizontal position. Fig. 2 is a vertical section of the same, taken at right angles with the section shown in Fig. 1. Fig. 3 is a horizontal section on line 00, Fig. 1.

Similar letters of reference indicate like parts.

A represents the rear wall, and A the side walls, of the furnace.

B is the fire-space, C the firepot, and D the ash-pit, all constructed as usual.

E is the boiler, provided withthe ordinary vertical fines c. This boiler is supported by the hollow axes or trunnions F F, having their bearings in the side walls of the furnace. The feed-pipe H, which supplies the boiler, extends into the trunnion F and is suitably packed at h. The steam-pipe I, which supplies steam to the building to be heated, is provided with a coupling J, as shown, below the roof A" of the furnace.

WVhen the fines are to be cleaned out, the coupling J is loosened, a wrench or other suitable instrument applied to one of the trunnions, and the boiler easily swung down into a horizontal position, as shown by the broken lines in Fig. 1, and the fines thus rendered easily accessible in all their parts.

A horizontal guard or partition K surrounds the boiler and rests on the trunnions, such guard conforming to the shape of the boiler and furnace, thus filling up the space at that point and preventing the flames from passing above it. The rear wall A is provided with a ledge a, on which the rear edge of the guard K rests when the boiler is in its usual vertical position, thus holding the boiler steady and preventing undue strain on the coupling J.

Access to the boiler when it has been swung down for cleaning is had by means of doors L.

It will readily be seen that the boiler-fines maybe cleaned with little difiiculty and great thoroughness, thereby enabling them to be kept free and the heat from the fire to be more completely utilized.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a steam-boiler furnace, the combination, with the side walls A, rear wall A, and front thereof, of a pivotally-sustained upright boiler provided with upright fines, said boiler being surrounded by the horizontal guard or partition K, resting on the trunnions, conformingto the shape of the boiler and the furnace and filling up the space at that point, whereby the flames are absolutely prevented from passing above it, substantially as set forth.

2. In a steam-boiler furnace, the combination of the side walls A, roof A, rear wall A, provided with the horizontal ledge a, doors L, the pivotally-sustained boiler E, the partition K, the rear edge'of which rests on said ledge, trunnions F F, pipe H, and pipe I, provided with the coupling J, substantially as described.

EDIVARD O. HOLMES.

WVitnesses:

HENRY \V. WILLIAMs, J M. HARTNETT. 

